Pneucleus incorporates two core technologies into every Mass Flow Controller, the InSitu-Sense™ mass flow sensor, and the Tri-Planar™ proportional valve. These two technologies have been serving the analytical instrumentation market for more than 36 years. Pneucleus has combined these technologies to create a line of low-cost mass flow controllers specifically designed for applications in Analytical Instrumentation, Vacuum Coating, and other applications that require precise & reliable gas flow.